User external script

[mhustak]

HI all.

I have some strange problem with external script.

If I run script localy on server script finished correcly.

PROCESS_NAME=$1;
typeset -i PROCESS_MEM;
PROCESS_MEM=0;

########################
# FUNCTION SCRIPT PART #
########################

####################
# MAIN SCRIPT PART #
####################

process_all_pid=$(ps -ef | grep "${PROCESS_NAME}" | grep -Ev 'ksh|grep' | awk '{print $2}');
RC=$?;
echo $process_all_pid
if [ $RC -eq 0 ]; then
for process_pid in $process_all_pid; do
if [ $process_pid -ne 0 ]; then
process_memory_usage=$(eval /usr/bin/svmon -P ${process_pid} -O summary=basic,unit=KB | awk '/^[0-9]/ {print $NF}');
((PROCESS_MEM=PROCESS_MEM + $process_memory_usage));
fi;
done;
else
echo "0";
exit 0;
fi;

echo $PROCESS_MEM
#echo $process_memory_usage
#echo $process_pid

exit 0;

If I run on server all work fine.

/usr/sbin/externalscripts/proc_mem_usage.ksh unica_aclsnr
11599902
255548

but if I run the same script from zabbix server over agent a take this

11599902
/usr/sbin/externalscripts/proc_mem_usage.ksh[42]: PROCESS_MEM=PROCESS_MEM + ***: syntax error

Its very funny, how I can get diferent output from same script?

[tim.mooney]

Does your script start with

#! [I]/path/to/the/shell/interpreter[/I]

?

You may want to do some web searching for the terms "Linux shbang" or "Linux script sh-bang" or "shell script magic number" to understand what the sh-bang line does for your script and why you should always include it.

[mhustak]

Here is all script include interpreter

#!/usr/bin/ksh

################################################## ################################################## ##############################
#
# Popis :
#
################################################## ################################################## ##############################
#
# File :
# Version : $Revision: 0.01.001 $
# Date : $Date: 2016/08/15 11:00:00 $
# Author :
#
################################################## ################################################## ##############################
#
# 0.1 Initial alpha version
#
################################################## ################################################## ##############################

########################
# VARIABLE SCRIPT PART #
########################
PROCESS_NAME=$1;
typeset -i PROCESS_MEM;
PROCESS_MEM=0;

########################
# FUNCTION SCRIPT PART #
########################

####################
# MAIN SCRIPT PART #
####################

process_all_pid=$(ps -ef | grep "${PROCESS_NAME}" | grep -Ev 'ksh|grep' | awk '{print $2}');
RC=$?;
echo $process_all_pid
if [ $RC -eq 0 ]; then
for process_pid in $process_all_pid; do
if [ $process_pid -ne 0 ]; then
process_memory_usage=$(eval /usr/bin/svmon -P ${process_pid} -O summary=basic,unit=KB | awk '/^[0-9]/ {print $NF}');
((PROCESS_MEM=PROCESS_MEM + $process_memory_usage));
fi;
done;
else
echo "0";
exit 0;
fi;

echo $PROCESS_MEM
#echo $process_memory_usage
#echo $process_pid

exit 0;

[tim.mooney]

If the problem is not that the script is being run by a different shell interpreter, then I would expect that the next most likely issue is a permission issue. Are you certain that the "eval /usr/bin/svmon" ... code can be successfully executed by a process running as the 'zabbix' user?

You probably will eventually want to remove or comment out the "echo $process_all_pid", since your script (when working) probably should only be returning one value, but I don't think that's what's causing the issue you're seeing.

[mhustak]

Ok now I change script.


#!/usr/bin/ksh

################################################## ################################################## ##############################
#
# Popis :
#
################################################## ################################################## ##############################
#
# File :
# Version : $Revision: 0.01.001 $
# Date : $Date: 2016/08/15 11:00:00 $
# Author :
#
################################################## ################################################## ##############################
#
# 0.1 Initial alpha version
#
################################################## ################################################## ##############################

########################
# VARIABLE SCRIPT PART #
########################
PROCESS_NAME=$1;
typeset -i PROCESS_MEM;
PROCESS_MEM=0;

########################
# FUNCTION SCRIPT PART #
########################

####################
# MAIN SCRIPT PART #
####################

process_all_pid=$(ps -ef | grep "${PROCESS_NAME}" | grep -Ev 'ksh|grep' | awk '{print $2}');
RC=$?;
if [ $RC -eq 0 ]; then
for process_pid in $process_all_pid; do
if [ $process_pid -ne 0 ]; then
#process_memory_usage=$(/usr/bin/svmon -P 11599902 -O summary=basic,unit=KB);
process_memory_usage=$(/usr/bin/svmon -P 11599902 -O summary=basic,unit=KB | awk '/^[0-9]/ {print $NF}');
#process_memory_usage=$(eval /usr/bin/svmon -P ${process_pid} -O summary=basic,unit=KB | awk '/^[0-9]/ {print $NF}');
# ((PROCESS_MEM=PROCESS_MEM + $process_memory_usage));
fi;
done;
else
echo "0";
exit 0;
fi;

#echo $PROCESS_MEM
echo $process_memory_usage
#echo $process_pid

exit 0;

But it's the same.

If I run script directly on the server I take this.

/usr/sbin/externalscripts/proc_mem_usage.ksh unica_aclsnr
292864 <- this is value of memmory usage

If I run the same script from zabbix server I take this.

Value of type "string" is not suitable for value type "Numeric (float)".
Value "admin aplikace audit bin bosinst.data dev etc home image.data lib lost+found lpp mnt nsr opt proc root runclisamp.aix32 runclisamp.aix64 sbin scratch smit.log smit.script smit.transaction sysbackup teradata tftpboot tmp u unix usr var".